Eurovan V6-2800cc 2.8L (AES) (2000)
Oxygen Sensor: Testing and Inspection
Oxygen Sensor Before Catalyst
Sensor and Control Check
Oxygen Sensor and Oxygen Control (Before CAT), Checking
Special tools and equipment
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VAG 1551/1552 Scan Tool using VAG 1551/3 adapter cable
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VAG 1598/18 Test Box
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Fluke 83 multimeter (or equivalent)
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VW 1594 Adapter set
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Wiring diagram
Requirement
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Engine Coolant Temperature 80 °C minimum
Functional check
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Connect VAG 1551 (VAG 1552) Scan Tool. Refer to Scan Tool Testing/VAG 1551 Scan Tool. See: Computers and Control Systems/Testing and
Inspection
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With engine idling, press buttons -0- and -1- to select "Engine electronics" address word 01.
Display will appear as shown
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -8- to select "Read measuring value block".
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Press -Q- button to enter selection.
Display will appear as shown
Read measuring value block
HELP
Input display group number XXX
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Press buttons -0-, -2- and -5- to select "Display group number 25".
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Press -Q- button to enter selection.
Display will appear as shown (1 to 4 = Display fields)
Read measuring value block 25
->
1
2
3
4
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Check Oxygen control Specifications (before cat). See Display fields 1 to 3